<template>
  <div class="login">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
      <h3 class="title">IMS-ADMIN</h3>
      <el-form-item prop="tenantName" v-if="tenantEnable">
        <el-input v-model="loginForm.tenantName" type="text" auto-complete="off" placeholder='租户'>
          <svg-icon slot="prefix" icon-class="tree" class="el-input__icon input-icon" />
        </el-input>
      </el-form-item>
      <el-form-item prop="username">
        <el-input v-model="loginForm.username" type="text" auto-complete="off" placeholder="账号">
          <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon" />
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input v-model="loginForm.password" type="password" auto-complete="off" placeholder="密码"
          @keyup.enter.native="handleLogin">
          <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon" />
        </el-input>
      </el-form-item>
      <el-form-item prop="code" v-if="captchaEnable">
        <el-input v-model="loginForm.code" auto-complete="off" placeholder="验证码" style="width: 63%"
          @keyup.enter.native="handleLogin">
          <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon" />
        </el-input>
        <div class="login-code">
          <img :src="codeUrl" @click="getCode" class="login-code-img" />
        </div>
      </el-form-item>
      <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>
      <el-form-item style="width:100%;">
        <el-button :loading="loading" size="medium" type="primary" style="width:100%;"
          @click.native.prevent="handleLogin">
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </el-button>
      </el-form-item>

      <el-form-item style="width:100%;">
        <div class="oauth-login" style="display:flex">
          <div class="oauth-login-item" v-for="item in SysUserSocialTypeEnum" :key="item.type"
            @click="doSocialLogin(item)">
            <img :src="item.img" height="25px" width="25px" alt="登录">
            <span>{{item.title}}</span>
          </div>
        </div>
      </el-form-item>
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">
      <span>Copyright © WQ All Rights Reserved.</span>
    </div>
    <!-- 引入粒子特效 -->
    <vue-particles color="#fff" :particleOpacity="0.7" :particlesNumber="60" shapeType="star" :particleSize="4"
      linesColor="#fff" :linesWidth="1" :lineLinked="true" :lineOpacity="0.4" :linesDistance="150" :moveSpeed="2"
      :hoverEffect="true" hoverMode="grab" :clickEffect="true" clickMode="push" class="lizi">
    </vue-particles>
  </div>
</template>

<script>
  import {
    getCodeImg,
    socialAuthRedirect
  } from "@/api/login";
  import {
    getTenantIdByName
  } from "@/api/system/tenant";
  import Cookies from "js-cookie";
  import {
    encrypt,
    decrypt
  } from '@/utils/jsencrypt'
  import {
    SystemUserSocialTypeEnum
  } from "@/utils/constants";
  import {
    getTenantEnable
  } from "@/utils/ruoyi";

  export default {
    name: "Login",
    data() {
      return {
        codeUrl: "",
        captchaEnable: true,
        tenantEnable: true,
        loginForm: {
          username: "admin",
          password: "admin123",
          rememberMe: false,
          code: "",
          uuid: "",
          tenantName: "ImsAdmin",
        },
        loginRules: {
          username: [{
            required: true,
            trigger: "blur",
            message: "用户名不能为空"
          }],
          password: [{
            required: true,
            trigger: "blur",
            message: "密码不能为空"
          }],
          code: [{
            required: true,
            trigger: "change",
            message: "验证码不能为空"
          }],
          tenantName: [{
              required: true,
              trigger: "blur",
              message: "租户不能为空"
            },
            {
              validator: (rule, value, callback) => {
                // debugger
                getTenantIdByName(value).then(res => {
                  const tenantId = res.data;
                  if (tenantId && tenantId >= 0) {
                    // 设置租户
                    Cookies.set("tenantId", tenantId);
                    callback();
                  } else {
                    callback('租户不存在');
                  }
                });
              },
              trigger: 'blur'
            }
          ],
        },
        loading: false,
        redirect: undefined,
        // 枚举
        SysUserSocialTypeEnum: SystemUserSocialTypeEnum,
      };
    },
    // watch: {
    //   $route: {
    //     handler: function(route) {
    //       this.redirect = route.query && route.query.redirect;
    //     },
    //     immediate: true
    //   }
    // },
    created() {
      // 租户开关
      this.tenantEnable = getTenantEnable();
      // 重定向地址
      this.redirect = this.$route.query.redirect;
      this.getCode();
      this.getCookie();
    },
    methods: {
      getCode() {
        // 只有开启的状态，才加载验证码。默认开启
        if (!this.captchaEnable) {
          return;
        }
        // 请求远程，获得验证码
        getCodeImg().then(res => {
          res = res.data;
          this.captchaEnable = res.enable;
          if (this.captchaEnable) {
            this.codeUrl = "data:image/gif;base64," + res.img;
            this.loginForm.uuid = res.uuid;
          }
        });
      },
      getCookie() {
        const username = Cookies.get("username");
        const password = Cookies.get("password");
        const rememberMe = Cookies.get('rememberMe')
        const tenantName = Cookies.get('tenantName');
        this.loginForm = {
          username: username === undefined ? this.loginForm.username : username,
          password: password === undefined ? this.loginForm.password : decrypt(password),
          rememberMe: rememberMe === undefined ? false : Boolean(rememberMe),
          tenantName: tenantName === undefined ? this.loginForm.tenantName : tenantName,
        };
      },
      handleLogin() {
        this.$refs.loginForm.validate(valid => {
          if (valid) {
            this.loading = true;
            // 设置 Cookie
            if (this.loginForm.rememberMe) {
              Cookies.set("username", this.loginForm.username, {
                expires: 30
              });
              Cookies.set("password", encrypt(this.loginForm.password), {
                expires: 30
              });
              Cookies.set('rememberMe', this.loginForm.rememberMe, {
                expires: 30
              });
              Cookies.set('tenantName', this.loginForm.tenantName, {
                expires: 30
              });
            } else {
              Cookies.remove("username");
              Cookies.remove("password");
              Cookies.remove('rememberMe');
              Cookies.remove('tenantName');
            }
            // 发起登陆
            this.$store.dispatch("Login", this.loginForm).then(() => {
              this.$router.push({
                path: this.redirect || "/"
              }).catch(() => {});
            }).catch(() => {
              this.loading = false;
              this.getCode();
            });
          }
        });
      },
      doSocialLogin(socialTypeEnum) {
        // console.log("开始Oauth登录...%o", socialTypeEnum.code);
        // 设置登录中
        this.loading = true;
        // 计算 redirectUri
        const redirectUri = location.origin + '/social-login?type=' + socialTypeEnum.type + '&redirect=' + (this
          .redirect || "/"); // 重定向不能丢
        // const redirectUri = 'http://127.0.0.1:48080/api/gitee/callback';
        // const redirectUri = 'http://127.0.0.1:48080/api/dingtalk/callback';
        // 进行跳转
        socialAuthRedirect(socialTypeEnum.type, encodeURIComponent(redirectUri)).then((res) => {
          // console.log(res.url);
          window.location.href = res.data;
        });
      }
    }
  };

</script>

<style rel="stylesheet/scss" lang="scss">
  .login {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    background-image: url("http://static.ims.iocoder.cn/login-background.jpg");
    background-size: cover;
  }

  .title {
    margin: 0px auto 30px auto;
    text-align: center;
    color: #707070;
  }

  .login-form {
    border-radius: 6px;
    background: #ffffff;
    width: 500px;
    padding: 25px 25px 5px 25px;

    .el-input {
      height: 38px;

      input {
        height: 38px;
      }
    }

    .input-icon {
      height: 39px;
      width: 14px;
      margin-left: 2px;
    }
  }

  .login-tip {
    font-size: 13px;
    text-align: center;
    color: #bfbfbf;
  }

  .login-code {
    width: 33%;
    height: 38px;
    float: right;

    img {
      cursor: pointer;
      vertical-align: middle;
    }
  }

  .el-login-footer {
    height: 40px;
    line-height: 40px;
    position: fixed;
    bottom: 0;
    width: 100%;
    text-align: center;
    color: #fff;
    font-family: Arial;
    font-size: 12px;
    letter-spacing: 1px;
  }

  .login-code-img {
    height: 38px;
  }

  .oauth-login {
    display: flex;
    cursor: pointer;
  }

  .oauth-login-item {
    display: flex;
    align-items: center;
    margin-right: 10px;
  }

  .oauth-login-item img {
    height: 25px;
    width: 25px;
  }

  .oauth-login-item span:hover {
    text-decoration: underline red;
    color: red;
  }

</style>
